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authorMartin Schanzenbach <schanzen@gnunet.org>2023-10-19 10:00:01 +0200
committerMartin Schanzenbach <schanzen@gnunet.org>2023-10-19 10:00:01 +0200
commita93ccc1ebb57f50ce6e90c7f0e57a3e58020b05e (patch)
tree8d1db5360aeb85b2c41e507869d1d3383c6999c5 /src/scalarproduct/gnunet-service-scalarproduct-ecc.h
parent98c00bad3d29a80c514818615c224a29307400cc (diff)
downloadgnunet-a93ccc1ebb57f50ce6e90c7f0e57a3e58020b05e.tar.gz
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BUILD: Move scalarproduct to contrib/service
Diffstat (limited to 'src/scalarproduct/gnunet-service-scalarproduct-ecc.h')
-rw-r--r--src/scalarproduct/gnunet-service-scalarproduct-ecc.h118
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diff --git a/src/scalarproduct/gnunet-service-scalarproduct-ecc.h b/src/scalarproduct/gnunet-service-scalarproduct-ecc.h
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2015 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20/**
21 * @file scalarproduct/gnunet-service-scalarproduct-ecc.h
22 * @brief scalarproduct service P2P messages
23 * @author Christian M. Fuchs
24 * @author Christian Grothoff
25 */
26#ifndef GNUNET_SERVICE_SCALARPRODUCT_ECC_H
27#define GNUNET_SERVICE_SCALARPRODUCT_ECC_H
28
29
30GNUNET_NETWORK_STRUCT_BEGIN
31
32/**
33 * Message type passed from requesting service Alice to responding
34 * service Bob to initiate a request and make Bob participate in our
35 * protocol. Afterwards, Bob is expected to perform the set
36 * intersection with Alice. Once that has succeeded, Alice will
37 * send a `struct AliceCryptodataMessage *`. Bob is not expected
38 * to respond via CADET in the meantime.
39 */
40struct EccServiceRequestMessage
41{
42 /**
43 * Type is #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_ECC_SESSION_INITIALIZATION
44 */
45 struct GNUNET_MessageHeader header;
46
47 /**
48 * For alignment. Always zero.
49 */
50 uint32_t reserved;
51
52 /**
53 * The transaction/session key used to identify a session
54 */
55 struct GNUNET_HashCode session_id;
56};
57
58
59/**
60 * Vector of ECC-encrypted values sent by Alice to Bob
61 * (after set intersection). Alice may send messages of this
62 * type repeatedly to transmit all values.
63 */
64struct EccAliceCryptodataMessage
65{
66 /**
67 * Type is #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_ECC_ALICE_CRYPTODATA
68 */
69 struct GNUNET_MessageHeader header;
70
71 /**
72 * How many elements we appended to this message? In NBO.
73 */
74 uint32_t contained_element_count GNUNET_PACKED;
75
76 /**
77 * struct GNUNET_CRYPTO_EccPoint[contained_element_count]
78 */
79};
80
81
82/**
83 * Message type passed from responding service Bob to responding
84 * service Alice to complete a request and allow Alice to compute the
85 * result. If Bob's reply does not fit into this one message, the
86 * conversation may be continued with `struct BobCryptodataMultipartMessage`
87 * messages afterwards.
88 */
89struct EccBobCryptodataMessage
90{
91 /**
92 * GNUNET message header with type
93 * #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_ECC_BOB_CRYPTODATA.
94 */
95 struct GNUNET_MessageHeader header;
96
97 /**
98 * How many elements this individual message delivers (in NBO),
99 * always TWO.
100 */
101 uint32_t contained_element_count GNUNET_PACKED;
102
103 /**
104 * The product of the g_i^{b_i} values.
105 */
106 struct GNUNET_CRYPTO_EccPoint prod_g_i_b_i;
107
108 /**
109 * The product of the h_i^{b_i} values.
110 */
111 struct GNUNET_CRYPTO_EccPoint prod_h_i_b_i;
112};
113
114
115GNUNET_NETWORK_STRUCT_END
116
117
118#endif